Woody climber. Branches glabrous, pale brown; lenticellate. Leaves: petiole 0.7-1 cm long; blade broad elliptic, 6-16.5 by 2.6-7 cm, 1.9-2.5 times as long as wide, apex obtuse to short blunt acuminate, base acute to rounded, papery to subcoriaceous, dull above and beneath, glabrous, punctate beneath, 10-16 pairs of secondary veins at 60-80°, weakly ascending near and almost reaching margin, tertiary venation of 1 or 2 intercalated veins and weak interconnecting veins. Inflorescence axillary; axis shorter than the subtending petiole, to 2 cm; 3-8 flowers per inflorescence; axes brown pubescent; pedicel 1.5-2.3 mm long. Sepals ovate, 2.1-2.8 mm long, lobes 1.9-2.1 by 1-1.4 mm, 1.5-1.9 times as long as wide, apex obtuse or rounded, brown puberulent, ciliate. Corolla tube cylindrical, c. 7.6 mm long, outside glabrous, inside puberulent; lobes partially ciliate. Stamens inserted at c. 4.2 mm from corolla base which is 0.55 of tube length; filaments c. 0.4 mm long; anthers c. 1.2 by 0.3 mm. Ovary c. 0.9 mm long; style c. 2.8 mm long, not impressed on ovary; style head c. 0.2 mm long, apex c. 1.1 mm long. Fruit oblong, c. 4.8 by 1.5 cm. Seeds rounded, flattened, 9-12 by 7-10 by 2.5-5 mm.
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